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Best boiler installation pros near Oswego, NY

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    Average homeowner rating
  • Verified reviews icon133
    Verified boiler installation services reviews

Top-Rated Boiler installation pros in Oswego - Updated Nov 2026

Avatar for 4 Power Now Inc.
4 Power Now Inc.
3.8(
28
)
Gas Boiler or Radiator Heating System - Install

Serving Oswego, NY and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"Outstanding from first meeting & purchase to 24Kw Generac's first start up. Amanda Tallman is completely thorough explaining all installation steps & the numerous items pertaining to this model. On the final day, in the rain, alone Amanda improved the propane line installed by gas supplier. We were so grateful for installation before cold weather & frozen ground occurs. Completely SATISFIED with 4 POWER NOW Roger Sevilla Throop Township."
Clay Generator After
22 kw Generac
Manlius Generator
East syracuse generator
Auburn Generac Generator

+1

Response time2 days
Recommended by78%of homeowners
Avatar for GreenHomes America
GreenHomes America
4.4(
31
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Oswego, NY and surrounding areas

In business since 1980

Free estimates

Emergency services offered

"I called Green Homes, Home Depot, and Comfort for estimates.  Prices for Green Homes and Home Depot were nearly identical.  Green Homes took more time to explain the features of the windows, show a sample, give considered opinons on options when I requested them, and didn't have extra costs that Home Depot did.  I ended up cancelling the comfort estimate.  I've used them before, and was happy to try someone else. 
They came out right away for the final measurement and gave a tentative date for install.  I called a week or so later, and they confirmed the date, which was only about 3 weeks.  Just after 5 on the Friday before the install I realized I never got a confirmation call, and they were closed so I couldn't call.  But no worries, at about 8:30 Monday morning they pulled in.  Jeff, Jeff, and Mark were great all day.  They did the rooms that I needed done first first, and the room that I  needed last last (moving some furniture around).  They got the inside work on the 12 windows, including trim replacement, done day 1.  Day 2 they arrived again about 8:30 and quickly installed the slider door, then began the outside wrapping.  In the pouring rain.  They're due back for about 1/2 day tomorrow to finish the wrapping outside. 
The windows seem like very good quality.  They missed the grids on 1 window, but the guys knew it and told me as soon as they arrived on day 1.  They installed the wrong window, and will be back out when the correct one is received.
I wouldn't hesitate to call these guys again for service. 

"
Window Example
Window Example
Window Example
Recommended by84%of homeowners
Avatar for 4 Green Power Systems, LLC
4 Green Power Systems, LLC
5.0(
4
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Oswego, NY and surrounding areas

In business since 2018

Free estimates

Emergency services offered

4 Green Power Systems, is you 1 stop shop for a turn-key Contractor. For Generac Automatic Generac Generators we have been awarded both the Elite Status and PowerPro by Generac. Mitssubishi Ductless has awarded us Diamond Contractor status, Samsung heat-pumps has awarded us Premier status and GeoStar GeoThermal HVAC systems. We design it, sell it, install it and service what we sell. With over 40 years in the business we do it right the 1st time.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+46

Recommended by100%of homeowners
Avatar for Johnny B. Goode Heating and Air Conditioning - Home  Facebook
Johnny B. Goode Heating and Air Conditioning - Home Facebook
4.5(
7
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Oswego, NY and surrounding areas

In business since 2012

Free estimates

Emergency services offered

"Hired Johnny B Goode to install mini split heat pump to a new construction. Unit is up and running. John had to make a couple trips in order to make this install happen with the other parts of the home construction. He was good about collaborating with the other contractors and at the end all came together nicely. Saved a few hundred dollars going this route. I would recommend Johnny B Goode Heating."
Response time11 hrs
Response rate88%
Recommended by100%of homeowners
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Install Boiler FAQs, answered by experts

On average, you’ll need about two gallons of oil per day to heat your house when it’s 50 degrees Fahrenheit outside. Most oil tank capacity is about 275 gallons, and heating your house with two gallons of oil per day will last about four and a half months. This consumption will vary depending on the climate and average temperature in your location. For example, if the winters are longer and colder where you live, you’ll probably need to refill your oil tank at least once to get through the winter.

An expansion tank must always be installed on the supply side, which is the side where the boiler sends water out to heat the systems. That placement allows the water to push against the air and condense properly as it is heated, then circulated through the system. Professional installers can recommend the best place on the supply side for an expansion tank.

Deciding whether or not to replace radiators with a different heating system depends on your personal preferences. Radiators can take longer to heat up than a central heating system, and they take up floor space. However, they can be very efficient at heating, and they keep rooms at a more comfortable humidity level in the winter than forced-air systems.

Propane is more cost-efficient than natural gas on a per-unit basis because it produces twice as much heat energy as an equivalent amount of natural gas. But propane is not ideal if you already have a gas line installed. The best choice for your home depends on the efficiency of your appliances and the amount of installation required of your fuel choice.

The absence of heating or hot water, unusual noises like banging or gurgling, and visible water leakage are key signs. Abnormal boiler pressure, flame irregularities (for gas boilers), or pilot light issues may also signal trouble. Frequent cycling, soot or staining, and unusual odors, particularly gas-like smells, should not be ignored. Modern boilers often display error codes or lockout mode upon detecting issues. Uneven heating across radiators and rising energy bills without increased usage can further point to problems. Prompt attention to these signs is essential to prevent further damage and ensure safety.

The Oswego, NY homeowners’ guide to boiler installation services

From average costs to expert advice, get all the answers you need to get your job done.